Reamer.



A. C. HOEH.

REAIVIER.

APPLICATION FILED .IULY I0, ISIS.

- Patented Mar. 13, 1917.

3 SHEETS-SHEET I.

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II I) Q-TI CILTIQS IIOQIY A. C. HOEH.

REAMER.

APPLICATION FILED 1u1Y1o.191e.

1,21 8,862. Patented Mar. 13, 1917.

3 SHEETS-SHEET 2.

4 v 02418 3 l 3 l .z "17 Vig@ Wmme@ M TM www @ZW UNITED sTATEs ALBERT CHARLES HOEH. OF DETROIT, MICHIGAN.

BEAMER.

Specification of Letters Patent.

Patented Mar. 13, 1917.

Application led .T u1y 10, 1916. Serial No. 108,294.

To all 'whom t may concern.'

Be it known that I, ALBERT CHARLES HoEH, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Reamers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to reamers, and the primary object of my'invention is to provide a reamer capable of shifting or floating relatively to the power applied, thereby relieving the reamer of stresses and strains that are ordinarily set up between the cutter head and the shank of the reamer, when the same is placed in operation.

A further object of this invention is to furnish a reamer with a novel floating cutter head that.can accommodate or adjust itself to the piece of work to be performed, thereby insuring precision and a uniform or equal distribution of power to the cutters or bits of the cutter head.

I attain the above and other objects by a strong and inexpensive mechanical construction that will be hereinafter specificallydescribed and then claimed, and reference will now be had to the drawings, wherein- Figure 1 is a side elevation of the reamer partly broken away and in section on the line II-II of Fig. 2;

Fig. 2 isa view in section on or about line II--II of Fig. l;

Fig. 3 is a view in section on or about line III- III of Fig. 2;

Fig. 4 isa view partly in side elevation, and partly in section ,on line IV-IV of Fi 2- Figf is a front elevation of a detached cutter head;

Fig. 6 isa side elevation of a detached reamer cap;

Fig. 7 is a rear elevation of the same;

Fig. 8 is a front elevationyof the reamer shank;

Fig. 9 is a longitudinal sectional view of a portion of the same.-

In the drawings, l denotes a reamer shank having the small end thereof provided with a tang 2 and the large end thereof terminating in a circular head 3 having three point sector-shapedbearing relation to the recess 16 and the intermediate 110 surfaces 4. The head 3 and the shank 1 have a concentric longitudinal bore 5 and inner tapering end of a pin 8 and when it is desired to remove said pin, a suitable tool can be inserted in the transverse opening 6 and driven therein to engage the inner end of the pin 8 and force said pin from its seat within the bore 5. Detachably mounted upon the outer end of the pin 8 is the sleeve 9 of a retaining lcap 10, which is retained in engagement with the pin .8 by a center screw 11 or other fastening means, said screw having the head thereof countersunk in the capl 10. The inner end of the sleeve 9 terminates in a plurality of radially disposed teeth 12 adapted to fit in the notches 7 of the shank head 3, thereby interlocking the shank 1 and the retaining capJ 10 for rotative continuity.

oosely mounted upon the sleeve 9, be-v tween the cap 10 and the shank head 3, is a cutter head or body 13 of a greater diameter than the head -3 and the cap 10. The periphery of the cutter head 13 has radially disposed transverse grooves or seats 14 fon cutters or bits 15 of a conventional form, said cutters protruding from the periphery of the cutter head. Any suitable means can a be used to prevent accidental displacement of the cutters.

An inner plate 21 and an outer plate 22 are interposed between the retaining cap 10 and the cutter head 13. Inner driving `members 24 loosely Vengage Vin openings in the inner plate 21 and in rectangular recesses 16 in lining blocks 18 seated in the outer enlarged end portions of longitudinal openings 17 formed-in the cutter head. Other intermediate driving members 24 loosely engage in mating rectangular openings in thel inner and outer wear plates 21and 22 that are in staggered relation to the 'recesses 16 of the lining blocks 18. Outer driving members `25 loosely enter rectangular openlngs in the outer wear plate 22 that are staggered with driving members 24 and extend into radially disposed slots 23 the inner face of the cap 10. Thus the wear plates and sets of inner,

intermediate and outer driving membersv tions between the floating cutter head and the cap. By the use of the rectangular openings, any tendency of the driving rolls to lodge is prevented.

By I locating the driving connection between the cutter head and the shank l adjacent to the cutters 1-5, the power is more di# rectly applied, and it is thought that the utility of the novel construction will be apparent without further description.

While in the drawing there is illustrated a preferred embodiment of' the invention, it is to be understood that the structural elements are susceptible to such changes as fall within the scope of the appended claims.

What I claim isz- 1. A reamer comprising a shank, a cap non-rotatably fand detachably supported thereby, a cutter head loosely interposed be .35"

tween a head on said cap and said shank, cutters carried by the periphery of said cutter head, and a driving connection between -f said cap and-said cutter head and between 'cutters thereof.` v

2. A reamerfc'om'prising a shank, a-cap non-rotatably and detachably supported thereby, a' ring/shaped cutter head loosely inf terposed-between, a vhead on said cap and A vsaid shank, and driving connections between 'rotatably held upon said pin,

said cap and said cutter head in opposed relation and adjacent to the peripheries thereof.

3. A reamer comprising a shank, a pin carried thereby, a cap having a sleeve nona cutter head loose upon said sleeve between a head on the cap and said shank, and driving connections between said cutter head and said cap.

4. A reamer 4-ieornprising a shank having a head, a cap having a sleeve non-rotatably engaging in the head of said shank, a cutter head loosely supported by the Vsleeve of said cap and provided with cutters, and driving connections between said cap and said cutter head adjacent to the cutters thereof.

5. 'A reamer comprising a shank having a head, a pin carried by said shank, a cap having a sleeve encircling said pin and non-rotatably engaging in the head of said shank, a cutter head loose upon the sleeve of said cap against the head of said shank, plates interposed between the cap and head, and driving means between the plates and the cap and head, permitting limited lateral displacement of the connected parts.

6. A'reamer. comprising a shank having a head, a pin carried by said shank, a cap having a sleeve upon said pin, and non-rotatably engaging the head of said shank, a cutter head loose upon thel sleeve of said cap, plates arranged between the cap and head, driving members'between each plate and adjacent part of the reamer and driving members between the plates, allowing limited lateral play between the several connected parts. 4

In testimony whereof I affix my signature in presence of two witnesses.

ALBERT CHARLES HOEH. v

Witnesses: j

KARL H. BU'rLnR, ANNA M. 

